I built an app that will allow to get files from my site. You will still have to rename and move the to the root of the sd card with a file manager but this should cut down on some of the corrupt downloads from users having an auto-open on their PC.
Can find it on the market and from this link.
And don't worry about the name, it works I swear.
Disclaimer: The files you get from that app will only work on a root/s-off Incredible